It seems the panic has gotten so bad that experts have been forced to come out and tell everyone to calm down, its just pollen.

"This is simply the year we are having. It became warm in just one day, and the birch started to bloom, the pollen falls from stamens," the head of the Institute of Nature's conservation laboratory, Boris Samoilov, told Gazeta.ru.

Of course, pollen has its own dangers:

It it just me or everyone in Moscow is having an allergy attack?? What's going on??